125566887 has 16 divisors (see below), whose sum is σ = 172585728. Its totient is φ = 81155520.

The previous prime is 125566871. The next prime is 125566907. The reversal of 125566887 is 788665521.

It is not a de Polignac number, because 125566887 - 2⁴ = 125566871 is a prime.

It is a super-2 number, since 2×125566887² = 31534086221741538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125566087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16918 + ... + 23180.

It is an arithmetic number, because the mean of its divisors is an integer number (10786608).

Almost surely, 2^125566887 is an apocalyptic number.

125566887 is a deficient number, since it is larger than the sum of its proper divisors (47018841).

125566887 is a wasteful number, since it uses less digits than its factorization.

125566887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470.

The product of its digits is 806400, while the sum is 48.

The square root of 125566887 is about 11205.6631664529. The cubic root of 125566887 is about 500.7547095870.

The spelling of 125566887 in words is "one hundred twenty-five million, five hundred sixty-six thousand, eight hundred eighty-seven".